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envelope-from=zycai@linux.ibm.com; helo=mx0b-001b2d01.pphosted.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org The Linux kernel does not preserve hdr_flags in the IPLB across a reboot, causing secure IPL flags to be lost on re-IPL. Set secure IPL flasg from s390_ipl_update_diag308() to restore the flags from the current machine configuration. Device validation is skipped here as it was already enforced during initial boot. Signed-off-by: Zhuoying Cai --- hw/s390x/ipl.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/hw/s390x/ipl.c b/hw/s390x/ipl.c index f4e01b6918..f970b34126 100644 --- a/hw/s390x/ipl.c +++ b/hw/s390x/ipl.c @@ -737,6 +737,14 @@ void s390_ipl_update_diag308(IplParameterBlock *iplb) } else { ipl->iplb = *iplb; ipl->iplb_valid = true; + + /* + * The kernel does not preserve secure boot flags across a reboot. + * Re-apply them here based on the current machine configuration. + */ + s390_set_secure_boot_flags(&ipl->iplb, + s390_secure_boot_enabled(), + s390_has_certificate()); } update_machine_ipl_properties(iplb); -- 2.54.0